{"product_id":"21-ft-x-21-ft-x-29-7-ft-right-triangle-sun-shade-sail-durable-uv","title":"21 ft x 21 ft x 29.7 ft Right Triangle Sun Shade Sail - Durable UV","description":"\u003cp\u003eIn this review of the 21' x 21' x 29.7' right triangle sun shade sail, the bottom line is simple: it is a practical, heavy-duty canopy for homeowners who need broad UV protection and a tidy, non-sagging installation. The reviewer found this shade sail best for patios, pools, driveways and carports because its curved edges are pre-calculated to keep the fabric taut, and the virgin polyethylene material delivers strong tensile strength plus up to \u003cstrong\u003e95% UV blockage\u003c\/strong\u003e for reliable sun protection.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner-to-corner measurement:\u003c\/strong\u003e Provides clarity on coverage and ensures customers know the sail spans 21' by 21' by 29.7' measured from corner to corner for planning an installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurved edge design:\u003c\/strong\u003e Edges are made slightly curved using a precise radian to prevent sagging in the middle and preserve a neat, tensioned look.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVirgin polyethylene fabric:\u003c\/strong\u003e Lightweight yet strong material gives durability and tensile strength while remaining easy to handle during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh UV and visibility blockage:\u003c\/strong\u003e Blocks up to 95% of UV and around 90% of visibility to reduce heat and glare for shaded outdoor living spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeasonal performance:\u003c\/strong\u003e Provides shading and cooling in summer, ventilation to reduce heat buildup, and some frost and light rain resistance for extended outdoor use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomizable and warranted:\u003c\/strong\u003e Available for custom orders and backed by a 3-Year Limited Warranty for long-term confidence.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe shade sail suits homeowners and renters who want a large, economical way to add shade over a \u003cstrong\u003epool\u003c\/strong\u003e, patio, carport or garden seating area without permanent construction. It works well for people who need broad UV protection and a visually tidy installation since the pre-curved edges help maintain tension.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for buyers who need a fully waterproof awning or heavy-duty storm-rated cover; the sail is only slightly rainproof and is intended to provide shade and reduced sun exposure rather than full weatherproofing or enclosure.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh UV blockage and good visibility reduction make it effective at cooling pools and patios.\u003c\/li\u003e\n\u003cli\u003eCurved-edge design prevents center sag and improves long-term appearance and performance.\u003c\/li\u003e\n\u003cli\u003eLightweight virgin polyethylene fabric balances tensile strength with ease of handling during setup.\u003c\/li\u003e\n\u003cli\u003eCustom order options and a 3-Year Limited Warranty add flexibility and assurance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot fully waterproof; offers only slight rain protection and is not a substitute for a sealed awning.\u003c\/li\u003e\n\u003cli\u003eHardware included received mixed feedback from customers, so buyers may want to inspect or upgrade attachment fittings for heavy-duty applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eShape\u003c\/td\u003e\n\u003ctd\u003eRight triangle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasured\u003c\/td\u003e\n\u003ctd\u003eFrom corner to corner (21' x 21' x 29.7')\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eVirgin polyethylene fabric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV blockage\u003c\/td\u003e\n\u003ctd\u003eUp to 95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVisibility reduction\u003c\/td\u003e\n\u003ctd\u003eAbout 90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e3-Year Limited Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCustomization\u003c\/td\u003e\n\u003ctd\u003eCustom orders available\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 21' x 21' x 29.7' right triangle shade sail is a strong value for anyone seeking broad sun protection and a clean installed look without complex construction. Its pre-curved edges and durable polyethylene fabric deliver reliable performance for patios, pools and carports, though those needing full waterproofing or commercial storm resistance should consider other solutions.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the size measured?\u003c\/strong\u003e\u003cbr\u003eSize is measured from corner to corner, so the listed 21' x 21' x 29.7' reflects the sail span between attachment points.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it keep rain out?\u003c\/strong\u003e\u003cbr\u003eThe fabric is slightly rainproof but not fully waterproof; it is designed primarily for shading and ventilation rather than complete rain protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it come with hardware?\u003c\/strong\u003e\u003cbr\u003eSome hardware is included, but customer feedback is mixed so checking or upgrading attachment fittings is recommended for heavy-duty installs.\u003c\/p\u003e","brand":"SHADESPEARE","offers":[{"title":"Default Title","offer_id":48247080386779,"sku":"B09QJQG8R3","price":134.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/91KrMBl3GKL._AC_SL1500_7dbe0a36-6bc4-4498-8076-fe18751e2d11.jpg?v=1771102447","url":"https:\/\/gearmusthave.com\/products\/21-ft-x-21-ft-x-29-7-ft-right-triangle-sun-shade-sail-durable-uv","provider":"GearMustHave","version":"1.0","type":"link"}